Adding and listing machine.



N. WHITE.

ADDING AND LISTING MACHINE. APPLICATION men MAR. 20. 1913.

10 SHEETS-SHEET I FIRST NATIONAL BANK I l l i I I I l a Fir? l.

M L .J li i I @uvwwtoz wikwzmo N. WHiTE,

Patented July 25,, 19%

I0 SHEE'FS-SHEET 2.

N. WHlTE.

ADDLNG AND USTING MACHINE.

APPLICATION FILED MAR. 20. 1913.

Patented July 25, 1916:

i0 SHEETS-SHEET 3.

N. WHITE.

ADDING AND LISTING MACHINE.

APPLHIATION man MAR. 20. 1913.

1,1 92,72 1. Patented July 25, 1916.

I I0 SHEETS-SHEET 4- 1 A25 87 A90 W'vtmeooao N. WHITE.

ADDING AND LISTING MACHINE. APPLICATION FILED MAR. 20. 1913.

1.192721. Patented July 25, 1916.

i0 SHEETS-SHEET 5.

gumwwl o'a mmw N. WHITE.

moms AND usrme meme. APPLICATION F ILED MAR 20. 1913- 1, 1 92,72 1 Patented July 25, 1916.

10 SHEETS-SHEET e.

gag i 2 NI WHITE.

ADDING AND LISTING MACHINE.

APPLICATION FILED MAR. 20. I9I3- Patented July 25, 1916 I0 SHEETS-SHEET 7.

Wbtncmo N. WHITE.

ADDSNG AND LISTING MACHINE. APPLICATION FILED mm 20. 1913.

m W LI N. WHITE.

ADDING AND LISTING MACHINE.

APPLICATION FILED Mn. 20. ms.

Patented July 25, 1916.

I0 SHEETs-SHEET 9 IIIIIIIII N. WHITE,

ADDING AND usnms MACHINE.

APPLICATION FILED MAR. 20. 1913. 1 1 92,72 1 Patented July 25, 1916.

I0 SHEETS-SHEET I0- .ing cooperation between NELSON WHITE, 0F PORTLAND, onneon,

ASSIGNOR, BY MESNE ASSIGNMENTS, T0

INTERNATIONAL MONEY MACHINE COMPANY, OF-TEREE HAUTE, INDIANA, A

CORPORATION OF INDIANA.

ADDING AND LISTING MACHINE.

Specification of Letters Patent.

Patented July 25, 1916.

Application filed March 20, 1913. Serial Ne. 755,817.

To all whom it may concern Be it known that I, NELSON WHITE :1 citizen of the United States, residing at Port land, in the county of Multnomah and State of Oregon, have invented, certain new anal useful Improvements in Adding and Listing Machines, of which the following 2i specification.

The present invention :tppertains to ed ling or calculating nizieliime and enilieiliee improvements in the keyboard nieehnnisni of: such machines inclmli particularly the arrangement and construction of the amount keys, the indexing devices eoimnoni used 1'10 cooperate with such lie Jet instrumentalities establishing eoopereeii'in between imlexing devices and he econ-rial: mechanism, the eontr )ll'il g error and repeat key :mmunt he {-1 end the ind Xing members.

The invention invok 1 controllingineeeanisi meter or lnmclle emf. IiPCllllIllSlR whereby the Eve may govern the ineehenism for the tn 1 totals for Well known nn ioses in me, A11.

l 1 1 ,1- 251529 tne e m een the mania.

valves certain (l an (if the izietrinwn talities eon'trolling the native of the trene fer devices forming at pert of the accumulating mechaniem.

The invention coveie the general i'neenw nisms above referred teas they may be used .-.ollectively, and as ens "ptible of segarnte use under certain con-l ions, together witl'i other several details or ermstruction anti 0}}- erntion, all of which xiii he more full im- KlQIStOOd. upon refermiw, to the :lollowing' inpenying drew terier parts. Fig Q5: vertical sent view bringing out clearly the genera rnngement of all of ti: tar I Fig. 4 1S :1 plan view chine frame adjacent to tl and illustrating more particularly the c0- operatien of the carryover and totaling parwls with the hitches controlling the operation of the curry-over racks. Fig. 5 is a sectional cliagminnmtie view of the transfer or marry-over nieelnmisni. in the of tripne adding wheels into mesh with the :i;'nclie ion zipproniinetely on the 8; Fig 8 is e ViBW of the nieelnne with the front en in nlete renmve "1e adfling ineeiziiiisni and v l Fig 1- is e W taken at a, ri it an- .3 iliuetreted in eerbut the general zine-edge (l i cleinng parle being machine to brine e" 5 netween the mini! ll o ll 1'1 'FWMP b i M i i ngnig' our mere ele 1. and main eetuzz. 1m; the parts shown 1U. 1 top plan view of eertein .niernng IUQCllilIUSiH, sl

ermin parts sectional view t or ri Milli- 6; view of the 5,9, the :lrznne of the end ow ein er to plan e 'llillll oil: the

" 1 locking 250* ward theleft hand side of the machine and bringing out clearly the means for feeding the platen iomvard. Figs. :23 and 24: are detail perspective views of one of the type carriers showing the manner of joining the composite parts thereof. Fig. is a partial section and side elevation of the carryover control mechanism. Fig. 26 a rear view of the parts shown in Fig. 25. Figs. 27 and 28 are views similar to Fig. 25 but showing the parts arranged at dill'erent stages in their operation.

ieferring to toe drawings, the numerals S and 9' designate the sides, or frames of the machine, a suitable easing being pro-- vided in co niection with said frame mem bers to hoise the several mechanisms, as cus omaryi The key-board Qi. of the machine is quite clearly illustrated. in Figs. 1, 2, 3 and 9, and this key-board comprises a bank of keys consisting of a number of rows, keys of each row being numbered from 1 to 9, consecutively. The capacity ot the machine illustrated is 9999.99, any amounts from 1 up to that ahove stated being adapted to be added and listed by the operation of the machine. Simply by adding additional rows of keys, the ca iacity mav be incre. sed and certain special keys, designated Repeat, Error, Subtotal, and Total are provided 2 usual.

.liain ilcZt-u or ---ln Figs 2 and l9v the main actuator is illustrated in the form of a handle 38 mounted upon shaft 39 journaled in. the in On the shaft 39 is ri l0, (see Fig. 12} the for which is adapted to abut W1 7 I h on the base of the machine to limit the forward nioven'ient of the hairlle, rearward movementof said handle being" limited by a lug 68 which projects ontw..i.'-dlv from the side oi. the machine.

[n Zca'iiig means for add? and 'z'c'ig men/muisms.l igs. 9 and show must clearly the indexing device kevs 29 to control the diiicren of the adding and printing umentalities, wherehy to add and list, r pei'ztive y, l amounts equivalent to the nu keys. The adding and list'in cells I of the general type (to; sing adding wheels adapted to be operated by reciproc" ing add ed per able by the iel adiuc ll .ng racks, the latter being conm with type carriers and the movement of said racks and type. carriers being differentially controlled by the keys :29, as above suggested. The springs 50 and 52 tend to hold. l e handle 38 normally at. its rear position on the :hal't are loosely mounted a or "ms; 9 ha ing croohou in In slots 69' operate l()ill the lower ends of dependi are rigidly secured at the r spect to the shaft 39, and mounted in bear ings in the frame members 8' and 9. A tie rod 73 and detent bar 7% connect the arms 69, and said bar Tl is normally maintained in such a position that it holds depressed, as shown in. Figs. 3 and 10, the rear ends of a plurality of levers 75. The levers 75 are loosely pivoted intermediate their ends upon the shaft 39, and said levers converge toward their rear ends and diverge toward their front ends, see Fig. 10. Springs 76 are anchored at one end to the base of the machine and at their opposite or front ends, they are secured to the arms 75 of the levers '75 and are normally under tension to raise the rear end portions of said arms. The levers 75 are maintained in the positions shown in Fig. 3, while the machine is at rest, by means of the detent bar 7i. A flexible link connection comprising the parts T? and 78, the latter a spring, is provided intermediate the segment 40 and a lever 79, whirh is also carried by the shaft 72 aforesaid.

From the foregoing it will be apparent that on forward movement of the handle 38 a rearward movement will be transmitted to the lever 79 through the flexible connection 7T, 78, said lever turning with the shaft 72. The movement of the shaft 72 causes the arms 71 thereof to move to 'ard the front of the machine and the rollers operate in the slots 69 of the arms 69 so to raise these arms and correspondingly lift the transverse men'ibers 73 and Tl which, with the arms 69 virtually form a detent bail holdiiig the various levers in their normal position as shown in Fig. 3. When the members 73 and H have been lifted in the manner set forth it will be apparent that the levers T5 are caused to tilt on the shaft 39, under the action of the springs 76 connected with each of said levers. The extent of movement of the lovers 75 will of course depend upon the position oi the adjusted index stop coiiperative with the adding rack with which the particular lever is connected. The tilting of the levers '75 de- Juwardly at their front ends carries the adding racks connected thereto downwardly if said racks have been released from the locking bars 88, and simultaneously, of course, the type carriers are elevated through the upward movement of the rear ends of the levers 75.

At their front ends, the several levers 75 are provided with forked portions engaging "the lowermost of lateral studs 81 on the adding racks 80. The racks 84) are vertically arranged and each rack is mounted to move l)"\-'.3ll a pair of supporting guide plates uitablv secured in position on cross rods of the framevmrk. The plates 82 are vertically slotted to receive the studs 81 and insure proper vertical movement of the racks WMMWWWWW in relation to the adding pinions or wheels 2A, with which the racks are adapted to be engaged.

The adding wheels or pinions 84 are located below a sight opening-85 in the front of the casing of the machine and are mounted on a shaft 86 carried by an accumulator frame 87. Normally the adding wheels are not in engagement with the racks 80 but the frame 87 is capable of being shifted or rocked in order to move the adding pinions or wheels 84 into and out of engagement with said racks 80 in a manner to be set forth clearly hereinafter in the detailed description of the adding mechanism.

The racks 80 are'stationary at, their uppermost positions when the machine is at rest, being held in such positions by engagement of lugs 80 thereon with flanges 88' of locking bars 88. One locking bar 88 is provided for each series or row of keys 29, and said bar is formed with cams 88 engage able by lateral pins 89 on the lower ends of the keys 29. For each series or row of keys 29, there is provided a series of index stops 90, which comprise a plurality of superposed sliding plates movable horizontally in guide openings or slots provided in supporting strips or guides 91 suitably attached at their ends to the frame members 8 and 9 and arranged transversely with respect to said stops 90. Each index stop 90 has near its rear end a lateral pin 92 entering an inclined cam slot 93 of a cooperating amount key 29, said slot being so disposed that, on depression of a key 29, the index stop 90 of the'latter will be moved longitudinally forward into the nth of the lug 80 of the adjacent rack. T 1e said depression of the key, of course, forces the co acting locking bar 88 rearwardly, by the cooperation of the pin 89 with a cam 88", and this action effects a release of the adding rack 80 from the locking flange 88', whereby to permit the adding rack to descend at the proper time and engage with the selected and now operative index sto At their rear ends, thelevers 75 are also ormed so as to engage with studs 94 provided at the lower extremities of type carriers 95, the latter consisting of vertical reciprocatory bars formed with longitudinal slots 96 through which supporting and guide rods 97 pass. At their upper ends, the type carriers 95 are supplied with the various types which are used to print amounts in accordance with those registered or added by means of the amount keys, suitable impres- 'sion' hammers'coacting with the types of each type carrier to accomplish the desired result. The general cooperation between the actuator or handle 38, the keys 29, indexing stops, adding and printing means will now be set forth.

\Vhon the operator desires to add and list a certain amount, those of the various keys 29 representing said amount are depressed.

' If a key 29 of each series or row is depressed,

all of the locking bars 88 will be moved rearwardly and their locking flanges 88 disengaged from the lugs 80 of the racks 80. In other words, the adding racks 80 are in this manner initially released. They do not move because the detent bar 74 is yet maintaining the levers 75 in their normal position. However, as soon as the operator pulls the handle 38 forwardly, the lever 79 (see Fig. 12) will be tilted or rocked through the flexible connection 77-7 8 and such movement of the lever will correspondingly rock the arms 71 and. raise the arms 69 which carry the detent bar 74. The moment the detent bar 74 is released, the

springs 76 act on the levers 75 to pull the a adding racks downwardly and elevate the type carriers 95. When the keys 29 were depressed, as before stated, each key, of course, moved its cooperating indexing stop into the path of the lug 80 of the adjacent rack 80 and when the adding racks were moved, the lugs 80 engaged with their selected index stops and in this manner the extent of movement of the rack 80 and the type carriers was differentially controlled. For instance, if the first key of the units row is depressed, it will set in operative position the uppermost of the indexing stops 90. If the key 3 of the tens row is depressed, the third indexing stop 90 from the top of the series coacting with the tens keys will be moved into operative position. \Vhen the adding racks for the keys just mentioned are moved downwardly, the units rack will have one increment of movement, While the tens rack will have three increments of movement.

On the return movement of the handle 38 to its rearward position, the various racks 80 will be raised to assume their normal positions, during which movement the adding wheels or pinions 84 are operated, and the type carriers will also be returned to their normal positions, the impression means having previously acted upon the types adjusted for printing.

Key lock (and release means.Verticall v arranged within the front portion of the key-board section are a plurality of pivoted locking plates 98, one of which is provided to coiiperate with the superposed index stops of each row of keys, as shown most clearly in Fig. 13 of the drawings. The springs 99 are connected with the innermost portions of the locking plates 98 and normally tend to force the outer edge of said plates into locking cooperation with the adjacent stops 90, each of the latter having a lateral rounded catch 109. lVhon the key 29 is depressed, its coasting index stop 90 is cammed outwardly in the manner above dellO scribed until the catch 100 of said stop is engaged at the inner edge thereof by the adjacent locking plate 08. Should a second key 20 in the same row be depressed, purposely or otherwise, its index stop 00 willengage the locking plate J8 last referred to and release the first mentioned depressed key, permitting the latter to return to its normal position and the newly depressed key to be locked depressed. A flexible key-board is thus provided for the machine. Arranged to slide transversely of the several locking plates 08, is a key release bar 101, having the inwardly extending hooks 101 arranged to engage and impart pivotal movement simultaneously to all of the locking plates 98. The bar 101 is at the front extremity of the keyboard section and is operable by an error key 102, arranged at the right hand side of the key-board. As shown clearly in Fig. 1c, the error key 102 is provided at its lower portion with a flange or cam 102 in an obvious manner. The cam 102 of the key 102 is arranged to engage a swinging release bail 101 pivoted to a shaft 105 and extending rearwardly from the front portion of the key-board section at the right hand side. The frontleg of the bail 101 is adapted to engage the right hand end of the release bar 101 and thus, it will be apparent that, on depression of the error key 102, the bail 101 will be swung to the left, imparting longitudinal release movement to the bar 101 and operating all of the locking plates 98 which have assumed locking positions in respect to any of the index stops 00. The various keys 20 are, in the above manner, simultaneously released. In other words, and referring particularly to Figs. 3 and 10. depression of a key 29 cams forward its predetermined indexing stop :10, the locking bar 88 cooperative with said key being simultaneously (:ammed rearward, as long as the key 29 is held depressed by the previously mentioned locking plate 08 (see ,l ig. 135) one. of these plates being provided for each row of keys or each row of index stops. Since the index plate 00 is held forward by the engagement of the predetermined locking plate 08 with a projection 100 on the edge of said stop, obviously the key .20 cannot return to normal until the member 08 disengaged from the projection 100 of the adjusted index stop 00. This diselr gagement is eil'ected through the medium of the release bar 101. said bar engaging all of the lock plates 08 and being tripped or moved leftward looking toward the keyboard from the front. by the rocking of the release bail 101 the trout leg of which bail engages dire tly with the right hand end of the release bar 101 so that inward movement of the ball will shift said bar 101 longitudinally and thereby tilt all of the plates 08 wh ther they have been engaged with projections 100, out of engagement with said projections thus permitting the stops 90 and the keys 29 which have been depressed to normalize. It is necessary, of course, that the bail 101 shall be operated from the main actuator in order that, upon the completion of an operation of the machine by said actuator, the keys 29 may be restored to their normal position. 'ith the above in View, the uppermost arm 72 of the lever 72, shown in Fig. 11, has an inwardly extending stud 712 thereon for cooperation with a. release lever 10G pivotally mounted on the frame at 107 and carrying at its upper end a pawl 108. A spring 100 tends to pull the lever 100 rearwardly in a position in which the lever normally rests against the stud 72. ()n initial movement of the actuating handle 38 the arm 72 ot' the lever T2 moves rearwardly, permitting the spring 109 to carry the release lever 101; in the same direction, the pawl 108 riding over the pin 101 on the inner end or leg of the bail 1011. On the return stroke of the handle 38, the stud 72 forces the release lever 100 forwardly and the pawl 108 by a sort of cam action against the pin 101 of the bail 101, swings said bail to the left, and imparts movement to the release bar 101, thereby permitting the keys 20 depressed to perform a transaction, to return to their uppermost positions. The pawl 108 has a stop 108' that abuts with the laterally curved upper end of the lever 106 so that said pawl will not yield on the forward movement of the lever, insuring a proper movement of the release bail 101.

ll'hile describing the release bail 101 it may be noted that said part has an additional function in reference to its cooperation with the total and sub-total keys 1 10 and 111. respectively. The keys 110 and 111 are mounted in the frame of the keyboard in a manner similar to the error key 102, being also guided by attaching and guiding pins 103. The said keys 102. 110 and 111 have springs 112 connected therewith to hold them upwardly retracted. The key 110 has a lateral locking llange 110 and the key 111 has a similar flange 111', said flanges being adapted to be engaged by the bail 101- when either of the total and sub-total" keys is depressed, whereby to lock said key in such position. A stud 110 on the key 110 and a stud .111 on the key 111 project laterally and are adapted to engage respectively, cams 11b and 1.1-.1- which are formed on a shifting bar 115 which is arranged transversely in respect to the keys 110 and 111. The bar 113 has a pin and slot connection 110 at its front end with the frame of the machine and at its rear end, said bar is pivotally connected with a side of a swinging bail 11?. The bail 117 has the sides 11?" and the cross piece of the bail is interlocked. as shown in Fig. 8, with the several locking bars 88 for the keys 29. Having in view the foregoing, it is obvious that by depressing either of the keys 110 and 111, the shifting bar 115 will be moved rearwardly, swinging the bail 11.7 in a corresponding direction and simultaneously moving THIWHId all of the locking bars 88 until shoulders 88 of said bars ei'igage bcneath the lateral pins 89. In the above manner therefore, the keyboard including the amount keys 29 is locked against operation whenever the total' or sub-total key is depressed to perform its usual function.

Still another speciai key, the repeat key, 118 is provided in the keyboard, is normally upraised by a spring 119, and is formed with a lateral arm 120 having a stud 120. On depression of the key 118, the stud 120 assumes a position abutting with the rear side of the release lever 106 so that when the handle 38 is operated to carry the arm 72 of the lever 72 rearwardly, the release lever 106 cannot move to perform its usual release operation, whereupon the previous transaction set up on the machine will be repeated in a manner readily apparent.

Accwmulaz ing and transfer meclmm'sm. Referring particularly to Figs. 4 to 8, inclusive, the accumulating mechanism of the machine consists of the frame 87 which is pivotally supported by upright rocker arms 121 carried by a rock shaft 122. The frame 87 consists of a number of upright division plates 123 united by suitable tie members. Between the division plates 123 are mounted the adding wheels and pinions 81 hereinbefore referred to. The end plates of the accumulator frame 87 have forwardly projecting extensions 87 at their upper ex tremities. which latter are forked so as to receive the transverse guide bar 121. By rocking the arms 121 inwardly or outwardly, engagement and disengagement of the add ing pinions or wheels with the adding racks may be effected, and at the outer sides of the adding wheels are arranged the carrying racks 125, the same being provided with teeth at their upper ends and said ends being also bifurcated. to lie-engaged with and guided by the guide bar 124. At its lower end, each carrying rack 127i is bifurcated to engage over a stud on the front end of a carrying lever 1213. The carrying or transfer mechanism includes primarily the carrying racks 12.1, their carrying levers 12o, tripping and totaling pawls 127, each of which 1S111011I1t9tl between adjacent division plates on the frame 87, and latches 128 pivotally n'iounted between the adjacent pairs of guide plates 82. The carrying levers 126 are pivoted between their ends upon a shaft 1.2) located just beneath the shaft A detent bar 130 is arranged trans" versely of the key-board, just beneath the carrying racks 125 and supported by a pair of arms 131, which are rigidly mounted on the shaft 129 before mentioned. Said shaft 129 is adapted to move the detent bar 130 by an arm 132, shown in Figs. 25 to 28, inclusive, and in conjunction with means to N be hereinafter more fully described.

.lxemplifying the general operation of the transfer mechanism, it will be noted that if the number 99 is set up on the keyboard, the units and tens adding wheels will rotate until the dials thereof show 99 at the sight opening of the machine. No transfer has yettaken place but the carrying cam 1358 on the units adding wheel is advanced nine spaces and occupies a position rear}; to trip the pawl 12?. if the i up on the law-board and number i is or the machine operated, the said carrying cam 133 will depress the pawl127, as shown in 5, said. pawl 127, through its iateral extension 12?, tripping the hitch and causing the foot 128 of said latch to be dis engaged from the tens carrying lever 131. Ordinarily,were no means provided to prevent such action, the tens carrying rack would now descend one space, However, the adding pinions at this period of the operation are in engagement with the adding racks 80 and not with the carrying racks 125 so the carrying operation must be temporarily delayed, for which purpose the detent bar 130, previously referred to, is provided, the same at this point in the operation of the parts assuming the position shown in Fig. 5, and holding the carrying racks 125 in their uppermost positions. As will be seen from Fig. 7, the stud on the front end of the carrying lever 126 is normally at the upper end of the slot or bifurcation in the lower end of the carrying rack. 125 and a spring 125 connects the parts 125 and 126 and is sufliciently strong to cause a gravitating movement, but weaker in tension than a second spring 131 which connects the inner end, of the carrying lever with a tie plate i135. 1n the or; ample cited above, as soon as the carrying cam 133 trips the pawl 127, the. stud of the carrying lever takes up the lost motion in the carrying rack and the stop 131 of the carrying lever moves in front of the stud 128 of the latch foot 128. The parts are now ready to connilete the carry when the deteni. bar 130 lowered to assume the position shown in Fig. 6, such moven'ient permitting the tens carrying rack 125 to tie-- sccnd a distance equal to the length of one tooth. thereby rotating the; tens adding wheel one tooth to cause the latter to trainfer from 9 to 0" on the dial at the sight 125 opening 85. Of course. in the above operation, the tick"; wheel in transferring will trip the carrying rack of the hundreds wheei, allowing the pinion of the latter to acvance one engaged their carrying racks. Fig. 5 shows the lastdcscribed action and the completion of the transfer operation will display the indication 106 at the sight opening The encmZ control mecfionism.The cooperation of the adding raclrs 80 with the adding wheels or pinions 81 is closely analogous to the equivalent action of those adding machines of the same type as the present improvements. Thus in relation to the rocking of the frame 01 the accumulating devices to cause engagement of said devices with the adding racks, for operations of addition, totaling, and sub-totaling, the time of such cooperation is different, being that ordinarily employed in this special type of adding mechanism. For the purpose of addition, the adding racks 80 are engaged with the adding pinions as said racks start on their upward movement. For the sub-totaling operation, the racks 80 are engaged with the adding pinions 81, both on the descending and ascending movement of said racks, while for totalizing, when the machine is, of course, cleared, the adding racks are engaged with the pinions 81 at the outstart of the downward movement of said racks.

The control means for the above operations is clearly illustrated in Figs. 11 and 12, wherein it will be observed that the rock shaft 1:22 carrying the accumulating section has an operating arm 136 which is connected by a link 137 with an approximately triangular-shaped controlling lever 138. The uppermost arm of said lever 188 is pivotally attached to the link 137 and the two lowermost arms of said lever designated 138 and 138 are hook-shaped and provided with cams 139. The lever 138 is pivoted at 110 and has lateral studs 1 11 and 1 12 projecting thereform for coiiperation under predetermined conditions with a wipe pawl 1 13, which is pivotally mounted at the upper end of the arm 72 of the lever 79. Engaging the rear end of the lever 138 is a detent 14 1 maintained in such engagement normally by a spring 145 to thereby hold the control leengage the cam surface 139 of the arm 138", thereby tilting the control lever 138 and rocking the tilting arm 136 to the rear. The movement of the arm 136 carries the accumulating wheels or pinions into mesh with the racks 80 and such meshing relation is maintained until the handle 38 returns to its normal position, restoring the arm 72 to its corresponding position and rocking the control lever 138 so as to assume its normal position through engagement of the roller 1-17 with the cam 1.39 of the arm 138.

Thetotal key 110 has a stud 1 18 adapted to engage the front end of a lever 14!), the rear end of which lever has a. stop 150 arranged adjacent to the arm 138" of the control lever 138. Intermediate its ends, the lever M9 has a lateral stud 151 adapted to engage a cam extension 152 upon an auxiliary lever 153 pivoted between its ends just below the lever 1 19. The front end of the lever 153 is engageable by a stud 15 1 near the lower end of the sub-total key 11, and the rear end of the auxiliary lever 153 is proximate to the arm 138' of the controlling lever 138 and adapted to constitute a stop having av function equivalent to that of the stop 150. Normally the springs 154 and 155 coiiperate with the levers 1 19 and 153, respectively, to hold the latter in their normal positions. In the totaling operation, the total key 110 will be depressed and thereby depresses the front ends of the levers 149 and 153. This action raises the rear ends of the levers aforesaid and permits movement of the pawl under the influence of the spring 156 so that as the handle 38 is drawn forwardly carrying the lever arm 72 rearwardly the pawl 143, whichis double-acting, will engage the stud 111, tilting the accumulating devices 81 into mesh with the racks 80. Furthermore, as the lever arm 72 starts to return to its normal position, while the handle 38 is doing the same, the pawl 143 is free to engage the stud 142 and tilt the accumulating devices out of mesh with respect to the racks 80. By this means, the accumulating devices are engaged with the racks only on the downward movement of the latter. In obtaining a sub-total, since depression of the key 111 depresses only the lever 153, the pawl 113 will act to rock the accumulating devices into engagement with the racks 80 as the lever arm 72 moves rearwardly. Since the stop 150 has not been raised, the pawl 143 will not coact with the stud 142 and therefore the accumulating devices and racks aforesaid will remain in engagement until the operation of the machine is completed, as is necessary in obtaining a subtotal.

T ransfcr control mechaniam.The arts of this mechanism are shown primari y in Figs. 25 to 28, inclusive, and comprise a depending pivoted lever 157 connected at its lower end by a link 158 with the arm 132 of the shaft 129 which carries the detent bar 130. The arm 132 is adapted to assume three different positions in restoring the transfer or carry-over mechanism, said positions being illustrated in Figs. 25, 27 and 28. In Fig. 25, the parts are shown in the positions occupied thereby when the machine is at rest after the operation. Fig. 27 shows the parts in their relation when the handle 38 is at the end of its forward stroke, the carrying racks 125 being raised above their normal positions in order to enable the part 12 of the foot of the latch 128 to engage over the adjacent end ofv the carrying lever 131. In Fig. 28, the parts are in the positions taken thereby immediately after the handle 38 starts upon its return stroke, at which time the carrying racks have again become meshed with the adding pinions 0r wheels 84, the normal condition.

Loosely mounted upon the shaft 72 is a latch 159, the rear end of which has a catch 159 to engage a lateral pin 160 on the depending lever 157. The shaft 72 aforesaid also carries for movement therewith the full-stroke sector 161, coacting with the full stroke pawl 162 in a well-known manner, and a lateral stud 159 on the front end of the latch 159 is adapted to be engaged .by the front edge of the sector 161. The rear edge of the sector 161 is capable of engagement with a stud 163 carried by the forward extension of the lever 157. A spring 164: connects the parts 158 and 159 and normally tends to hold the latch 159 with its stud 159 engaging with the sector 161, as shown in Fig. 25.

It will be apparent that as the handle 38 is drawn forwardly, the sector 161 moves rearwardly until it engages with the stud 163 of the lever 157, whereupon the several carrying racks 125 and carrying levers 131 are restored. When the sector 161 moyes the lever 157 rearwardly, the catch 159 of the latch 159 engages over the pin or stud 160 and prevents movement of the carrying racks, thereby retarding the carrying operation until the return movement of the handle 38, or until said handle reaches the extreme end of its return stroke, at which time the latch stud 159 will be tripped by the sector 161, raises the catch 159' and permitting the spring 164: attached to the link 158 to pull upon said link, rock the arms 132 and lower the detent bar 130. Said lowering movement of the detent bar 130 permits a similar movement of the carrying racks 125 and carrying or transfer action of the same if the accumulating devices are ready for such transfer. I

At the up er end the sector 161 carries a stud 165 which engages with the bifurcated lower end 166 of a lever 166 which cotiperates in a peculiar manner with the printing mechanism as will now be more fully described.

Pm'nting mechanism.-The type carriers of the printing mechanism have heretofore been referred to as consisting of vertically movable type bars 95 arranged in the rear portion of the key-board section of the ma chine, said bars being supplied at their up- 1 is provided at its upper portion with an incasing plate 167 interlocked at its upper extremity as shown at 167, with lugs 167" on the upper extremity of the type bar, the parts 95 and 167 being attached together by screws or other fastenings, as shown at 168. Flanges on the edges of the type bar 95 are cut out to form guide portions 169 for the type members 95 and the springs 170 coacting with the members 95 are housed between the incasing plate 167 and the body of the type bar 95, as shown most clearly in Fig. 22 of the drawings.

A set of type bars 95 of a number corresponding with the number of rows of amount keys 29 of the keyboard is provided and with said type bars is associated a set of hammers 171 for striking the type members 95, a set of hammer drivers 172, each connected with the adjacent hammer, a set of-catches 173 of hook-like form for normally restraining the hammers under ten sion, and a set of springs 171 connected with the hammer drivers.

The above mentioned parts are primarily supported in a frame consisting of sides 17 5 and 176, the lower portions of which are connected by tie rods 177 and 178. Said frame for the printing devices is rockably mounted on a shaft 179 and the left side 17 5 of the frame has an upwardly extending arm 180 above. the shaft 179. The rod 177 constitutes an axis for the various catches 173 which are adapted to engage over lugs 181 on the coacting hammer drivers 172. The rod 178 has connected thereto a set of springs'182 which are attached also to the catches 173 and normally tend to force the latter into engagement with the lugs 181. Each hammer 171 has a head at its upper end to impinge with the adjacent end of any type member 95 of the cotiperating type carrier or bar 95 and at its lower end the hammer is loosely pivoted upon the shaft 179. Each hammer driver 172 is also pivoted on the shaft 179, the lower end of the driver being connected with its spring 174, the upper end of the driver having ears 172 between which the body of the cooperating hammer is loosely engaged, and the intermediate portion of said part 172 being adapted to abut with the stop bar 183. There is therefore some lost motion between the ears 172 of the driver 172 and the hammer 171 engaged thereby, to provide for the rebound of the hammers after impact with the type members 95, the liability of blurring being thus obviated. The arm 180 of the hammer supporting frame is connected by a driving link 181 with an arm 185 of a rock shaft 186, to which shaft 186 the lever 166 before referred to is connected. A dash pot 187 or equivalent retarding device is arranged at the left of the printing mechanism, being supported upon a cross rod 188 of the frame of the machine, the plunger rod of the dash pot being attached at its upper end to a cross bar 189 mounted on rocker arms 190 attached to the shaft 186. A suitable platen 216 is arranged to cotiperate with the printing members 95 of the type carriers 95 and the tails or lower ends of the catches 173 are split to provide-laterally extending stops 192, each projecting in front of the tail portion of the next adjacent catch to the left, whereby the cipher type members 95 of type carriers 95 not operated by adjustment of the keys 29, will be printed on operation of the impression means.

1th the above description in view, and bearing in mind that each type carrier 95 has an abutment 95 at its front edge to be engaged by the tails of the catches 173 when the latter are rocked'ivith the hammer frame rearwardly, and when the type carriers are not in their zero positions, the operation of the mechanism will be clearly understood from the following:

During the initial movement of the handle 38, those type carriers 95 which are indexed for any number above zero, will be elevated to the printingpoint, after which the frame 175-176 will be rocked slightly rearward until the tails of predetermined catches 173 engage with the abutments 95 of the elevated type carriers. Such engagement will tilt the catches 173 from the studs 181, thereby releasing the hammer drivers 172 of such catches and permitting the hammers 171 of said drivers to be fired, or operatedagainst the previously adjusted printing members 95'. The provision of the dash pot retarder 187 governs the speed of the machine, preventing scattering of the type and violent manipulation of the handle 38. When the frame 175-476 of the printing devices is rocked back to its normal position, the catches 173 will be reengaged with the studs 181 of the hammer drivers 172 and locked until another transaction of the machine is performed.

As shown in Figs. 19, 20, 21 and duplicate printing mechanism is provided and consistsof auxiliary type carriers 95", each of which is connected with the corresponding one of the main type carriers 95. To establish such connection, a plurality of gear shafts 193 are provided in superposed relation upon a suitable frame 191. There are two gears 195 on each shaft 193, said gears meshing with gear teeth 196, on the rear edges of the corresponding type bars 95 and 95*. That is to say, the gears 195 of the lowermost shaft engage with the units type carriers 95 and 95 of the main and auxiliary printing mechanisms. The gears of the next shaft 193 engage with the teeth on the rear edges of corresponding tens type bars of the two printing mechanisms, and so on. By reason of the intergearing of the type carriers or bars of the two printing mechanisms, whenever one of the type carriers 95 is indexed at a predetermined adjustment on movement to such adjust ment, its corresponding type carriers 95 will be simultaneously adjusted. The other printing instrumentalities cooperating with the type carriers 95 are identical with those cooperating with the type carriers 95 so the operations of the main and auxiliary printing mechanisms are simultaneous and capable of making a list or record in duplicate, which is often desirable for the printing'df a check or slip placed in the machine and for printing a recording strip, which is constantly passing through the machine.

As usual in these machines a suitable inking ribbon 197 is fed between the printing members and the work, and preferably, as shown in Fig. 2, said ribbon passes around the spools 198 and 199. Said spools have toothed wheels, the teeth of which are engaged by feeding and reversing pawls 202 and 203, carried respectively by levers 202 and 203. The levers 202 and 203 are connected by a plate 204 which is adapted to be reciprocated through connections,not shown, intermediate the plate and the main actuator. As the details of the ribbon feeding mechanism do not constitute a part of the present invention, they are not herein described.

Platen feed meckam'sm.The mechanism for feeding the roller platen 216 is shown clearly in Fig. 22 and-certain parts are illus' trated-in Figs. 7 and 21 also. The platen 216 is arranged above the paper spool 217 which carries the roll of paper 218 that constitutes the recording strip incidentally referred to hereinbefore. Mounted upon the axis 219 of the spool is an angle lever 220, the lower arm of which is formed with a cam 221 arranged to be engaged by the arm 180 which rocks with the hammer frame. The other arm of the lever 220 is approximately vertical and carries at its upper end a roller which operates in a cam slot 223 of a feed lever 224 pivoted to the axis of the platen 216. Pivoted to the lower outer portion of the feed lever 224: is a spring actuated feeding pawl 225 adapted to engage at one end with a toothed disk attached to an end of the platen, the other end or tail of the pawl being engageable by a lateral pin 226 on the vertical arm of the angle lever 220. A pivoted pressure finger 227 is mounted above the lever 220 and a spring 228 holds said lever in engagement with a star-wheel 229 on the right hand end of the platen 216. the part 227 preventing overrotation of the platen. A feeding roll 230 cooperates with the platen and the recording strip 218 in the well-known manner and a. lever 231 is arranged to be manipulated to release the feed roll from operative engagement with the strip 218 for adjustment of the latter or other purposes.

With the arrangement of parts in View as above set forth, it will be apparent that on the forward movement of the arm 180, the cam 222 moves downwardly, permitting the lever 220 to be tilted by the spring 232 connected therewith. Such movement ofthe lever 20 imparts upward movement to the feed lever 22% and the pawl 225 carried thereby, this action raising the pawl preliminary to engagement of the same with the next tooth of the feed disk 216' on the platen. The above operation takes place as the handle 38 moves forwardly and on the return stroke of the handle 38, the feed leve'r 22l is depressed, feeding the platen forward to a predetermined point and correspondingly feeding from the machine a section of the recording strip 218. The feeding of the platen being completed through the action of the lever 224., the final lowering movement of said lever causes engagement of the tail of the feeding pawl 225 with the pin 22G, thereby tilting the pawl from engagement with the disk 21.6 and permitting the platen to be turned in either direction at the will of the operator.

General oywmtion of entire maclzz'ne.- Before describing the complete operation of the invention, it should be noted that on the return stroke of the handle 38, the detent bar 74 picks up, so to speak, the levers 75 and restores the same, the adding racks 80, and type carriers 95 and 96, to their original positions. The total and sub-total keys are adapted to actuate the key release bail 104 when the former are depressed, to thereby throw out an item from the keyboard when either of said keys is operated. The cam slots (39 in the arms 69 are peculiarly formed at their rear and forward ends so that in the operation of the machine, the adding racks will be maintained stationary while the adding wheels or pinions are engaging or disengaging in respect thereto. After the keys 29 are depressed to set up a suit able amount to be added and listed by the machine, the handle 38 is pulled forward and during such initial movement, the indexed adding racks 80 move downwardly and the corresponding type carriers 95 move upwardly until said parts reach their differentially adjusted positions. Just prior to the final movement of the handle 38 completing its forward stroke, the hammer drivers are fired to complete the operation of the printing and listing mechanism. The ribbon feeding parts are also actuated at the proper time to feed the inking ribbon 197 to present a fresh portion thereof to the printing point of the type members and the platen feeding devices are correspondingly operated to perform their proper functions. At the time the hammers are fired, the adding wheels are drawn into engagement with the adding racks 80 and on the return movement or stroke of the handle 38, the several levers intermediate the adding racks and type carriers are restored to their normal positions and said adding wheels are rotated a predetermined number of teeth as controlled by the indexing mechanism of the keyboard. Of course, the full-stroke sector 161 compels complete operation of the machine once the operator has started to pull the handle forward.

Since the printing or listing mechanisms are provided in duplicate, one of said mechanisms will record transactions of the machine on a recording strip while the other is capable of listing said transactions upon a slip, check, or other member placed in the guide 233. Springs 248, shown in Fig. 8, are connected with the keys 29 and normally tend to restore said keys when released.

Having thus described the invention, what is claimed as new is:

1. In an adding machine, mechanism for accun'iulating items and totalizing the same, amount keys, indexing mechanism controlling differential action of said accumulating mechanism, and operable by the amount keys. and a single locking member operable by the amount keys to release the accumulating mechanism and independently H1OY- able to lock said amount keys from opera-' tion.

2. In a calculating machine, adding racks,- amount keys for controlling differential movements of said racks, locking bars normally locking said adding racks from movement and operable by the amount keys to release the racks, and means for causing an abnormal movement of said locking bars to throw the same into locking cooperation with the amount keys, whereupon the latter will be prevented from actuation.

3. In an adding machine, the combination of mechanism for accumulating items and obtaining the total thereof, comprising adding racks, amount keys for controlling differential movements of said racks,locking bars normally locking said adding racks from movement and operable by the amount keys to release the racks, and a total key included in the accumulating mechanism and adapted to operate the locking bars independently of the operation of the latter by the amount keys, so as to cause said locking bars to lockingly cooperate with the amount keys for preventing actuation of the latter during the operation of taking a total.

4. In an adding machine, the combination of mechanism for accumulating items and obtaining the total thereof, comprising adding racks, amount keys for controlling differential movements of said racks, locking bars normally locking said adding racks from movement and operable by the amount keys to release the racks, the accumulating mechanism comprising a total key, and means intermediate said total key and the locking bars to impart to the latter movement independent of their movement by the amount keys to thereby cause said bars to lock the amount keys from actuation.

In an adding machine, accumulating mechanism comprising adding racks and wheels, amount keys, indexing stops operable by the amount keys to control differential movement of the racks, locking bars normally cooperating with the adding racks, means intermediate said bars and keys for shifting the bars to release the adding racks when an amount key is depressed. and means for imparting additional movement to the lockingbars to engage the same directly with the keys and thereby prevent depression of the latter.

6. In an adding machine, accumulating mechanism comprising adding racks and wheels, amount keys, indexing stops operable by the amount keys to control differential movement of the racks, locking bars normally cooperating with the adding racks, means intermediatesaid bars and keys for shifting the bars to release the adding racks when an amount key is depressed, a total key, a swinging bail engaging the locking bars, and means intermediate said bail and the total key whereby on operation of the latter the bail will move the locking bars into a position preventing depression of any of the amount keys.

7. In an adding machine, the combination of accumulating mechanism comprising addin racks, a key-board comprising a plurality of rows of keys, each row associated with an adding rack, index stops intermediate the keys of each row and its adding rack, a locking bar for each row of keys normally locking the associated adding rack from movement, pins carried by the keys to engage and shift the adjacent locking bar to release its coacting adding rack, a total key, a shifting bar operable by said total key, a swinging bail engaging the several locking bars of the rows of keys, and a connection between said bail and the shifting bar aforesaid, whereby on depression of the total key, the locking bars will be moved to cooperate with the pins of the amount keys to prevent depression of the latter.

8. In an adding and listing machine, the combination of accumulating mechanism including adding racks, printing mechanism comprising type carriers, levers pivoted intermediate their ends and each operatively connected at its opposite ends with an adding rack and a type carrier, means for controlling difi'erential movements of the racks and carriers, and a main actuator for the machine comprising a shaft constituting the axis of said levers, arms having longitudinal cam portions and supported by said shaft, a detent bar connecting said arms and engaging the levers to hold them in a predetermined position, springs connected with the levers to actuate them when released from the detent bar, a drive shaft, arms carried by said drive shaft, members on the last mentioned arms engaging the cam portions of the first mentioned arms, and a connection between the operating shaft and the drive shaft, substantially as described.

9. In an adding and listing machine, accumulating and listing mechanism for printmg and accumulating items and printing the totalthereof, amount keys, indexing mechanism controlling differential action of said accumulating and listening mechanisms, and operable by the amount keys, locking means operable by the amount keys to release the accumulating mechanism, said accumulating mechanism including a total key for cau ng said locking means to lock the. amount keys from movement during the operation of taking the total, and locking and release means for the parts of the indexing mechanism com prising an automatically operating member for holding the total key in an operated position.

10. In an adding and listing machine, accumulating and listing mechanism for printing and accumulating items and printing the total thereof, amount keys, indexing mechanism controlling differential action of said accumulating and listing mechanisms, and operable by the amount keys. locking means operable by the amount keys to release the accumulating mechanism, said accumulating mechanism including a total key 

